Autor: |
Silva FR; Depto de Entomologia e Acarologia, ESALQ, USP, Piracicaba, SP, Brasil., Moraes GJ, Gondim MG Jr, Knapp M, Rouam SL, Paes JL, Oliveira GM |
Jazyk: |
angličtina |
Zdroj: |
Neotropical entomology [Neotrop Entomol] 2010 Nov-Dec; Vol. 39 (6), pp. 991-5. |
DOI: |
10.1590/s1519-566x2010000600022 |
Abstrakt: |
The spider mite Tetranychus evansi Baker & Pritchard can cause severe damage to tomato crops. The predatory mite Phytoseiulus longipes Evans was recently reported in association with T. evansi in Uruguaiana, Rio Grande do Sul State, Brazil. The objective of the present study was to evaluate the effects of P. longipes on the population of T. evansi on tomatoes under screenhouse condition. The study consisted on four experiments, in each of which 80 potted plantlets were distributed in two plots of 40 plantlets each. Two weeks later, each plantlet of both plots was infested with eight adult females of T. evansi; one week after, four adult females of P. longipes were released onto each plant of one plot. The population levels of T. evansi and the damage caused by these mites were significantly lower (P < 0.05; linear mixed-effect model) in the plots where P. longipes had been released. The results indicate the potential of this predator as a candidate for classical biological control of T. evansi by inoculative releases on tomato plants. |
Databáze: |
MEDLINE |
Externí odkaz: |
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